This study introduces scientific concepts such as gravitational cells and gravitational strings. This innovation made it possible to move from general ideas about the gravitational interaction of bodies in space to a more detailed understanding of this physical process and to obtain significant scientific results. These results include: obtaining the formula for the gravitational constant, obtaining the formula for the gravitational quantum, obtaining the formula for the electron mass, obtaining the formula for the mass of the hydrogen atom, obtaining the formula for the vibrational velocity of the gravitational string, obtaining the value of the minimum distance of gravitational interaction, obtaining a new physical formula for the speed of a body in a gravitational field, obtaining the formula for the limit of action of gravitational forces. The calculations made according to the new formulas completely coincided with the experimental data. In this work, Planck's constant was successfully applied to the gravitational interaction (with its help, the minimum distance of the gravitational interaction was determined, the mass of the hydrogen atom was calculated with an accuracy of 10−7, etc.). A distinctive feature of this study is the fact that most of the new formulas contain only fundamental physical constants.